So it works while its W2k3-SP1 but then breaks once upgraded to R2?

What did you mean by incoming connections? Did you just mean ICMP? or actual connections like to certain services? Are the other DCs allowing incoming ICMP echo requests and allowing replies out? Are they also W2K3 -SP1?

I assume there is no other firewall software from thirdparty AV or anything else installed.

Just an idea. Is it worth checking the rsop.msc for Computer Configuration/Administrative Templates/Network/Network Connections/WIndows Firewall/Domain Profile and Standard Profile /Allow ICMP exceptions?

Sounds to me like a security configuration wizard was run on it.

I'd wait for someone more knowledgeable to say something if I were you ;-) Still, it doesnt hurt to check.

Cheers

M@

On 7/29/06, HBooGz <[EMAIL PROTECTED]> wrote:
Morning to all -

I just spent the last 6 hours with dell gold software support team trying to figure out the following occurrence:

The upgraded R2 DC does not accept incoming connections, but it appears it accepts certain connections. Particularly those related to directory services. e.g. telnet server ip 389 from the mail server works. \\serverip or servername brings up the shared printers and folders perfectly.

outbound traffic and icmp works fine, inbound icmp returns a time out.

scenario:

Windows 2000 SP4 DC in-place upgrade to windows 2003 SP1 then upgrade to R2.
connections to and from box were fine on 2003 sp1.
downgraded NIC drivers to match other r2 DC on identical server hardware/model
installed new nic drivers and proset
upgraded to R2.
rebooted and noticed a ton of errors with services hanging upon boot.
checked connection to the box from workstations and servers, but all requests timed out.
i made sure ICF was disabled.
i disabled IPSEC and entered dword value for ProhibitIpSec - nothing
i then enabled ICF configured exceptions - explicitly allowing ICMP, and still nothing.
reset the TCP/ip stack and winsock using netsh, nothing
servers has two nics, one of which is disabled. changed binding order so active is on top -- nothing
reinstalled the binaries of windows 2003 sp1 and upgraded to r2 again -- nothing.

i'm at a lost of ideas and sure could use to vast resources the contributors of this group may have or know of.

Thanks,





--
HBooGz:\>

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